Bell-shaped water seal floor drain capable of preventing radon gas and odor

Abstract

The utility model relates to the technical field of drainage pipelines, in particular to a bell-shaped water seal floor drain capable of preventing radon and odor, which comprises a floor drain body, a drainage pipe, a floating bell jar and a one-way valve, the one-way valve is arranged at the inlet end of the drainage pipe, the drainage pipe penetrates through the lower end of the floor drain body, and the inlet end of the drainage pipe is communicated with the interior of the floor drain body. And the floating bell jar covers the inlet end of the drainage pipe. The one-way valve is additionally arranged at the inlet end of the drainage pipe, so that one-way conduction of the drainage pipe is achieved, accumulated water on the ground can be drained to the drainage pipe through the one-way valve, and radon gas and odor in the drainage pipe cannot reversely escape to the ground under the dual effects of the water seal of the floor drain body and the one-way valve.

Description

Technical Field

[0001] The utility model relates to the technical field of drainage pipes, in particular to a bell-shaped water-sealed floor drain capable of preventing radon and odor. Background Art

[0002] In underground particle physics laboratories with high requirements for background environment, the experimental space (rock wall) needs to be waterproofed and radon-suppressed to prevent the impact of radon gas in the rock mass on underground experiments. However, since the inner surface of the ground drainage channel is not waterproofed and radon-suppressed, radon gas and odor escaping from the bedrock will enter the underground laboratory through the drainage pipes, seriously affecting the low-background physics experiments in the underground laboratory and the health of the staff.

[0003] The bell-shaped water-seal floor drain is a commonly used drainage structure on the ground. It forms a water seal by filling water in an inverted bell-shaped container, which theoretically isolates the odor and radon gas in the drainage pipe.

[0004] However, during the long-term operation of the underground laboratory, the water stored in the bell-shaped water-seal floor drain will gradually evaporate and cannot be automatically replenished. Personnel are required to regularly check the water level of the floor drain water seal and replenish water. Otherwise, the water seal's ability to isolate radon and odor will disappear, increasing the environmental background value of the underground laboratory, seriously affecting the results of subsequent scientific experiments and the comfort of scientific experimenters. Utility Model Content

[0005] The purpose of the utility model is to provide a bell-shaped water-sealed floor drain that is radon-proof and odor-proof. A one-way valve is added to the inlet end of the drain pipe, thereby realizing one-way conduction of the drain pipe, so that water accumulated on the ground can be discharged to the drain pipe through the one-way valve. Under the dual effects of the water seal of the floor drain body and the one-way valve, radon gas and odor in the drain pipe will not be able to escape back to the ground, thereby solving the technical problem of the existing bell-shaped water-sealed floor drain failing to function when the water level is too low.

[0006] The embodiment of the present utility model is realized through the following technical scheme: a bell-shaped water-sealed floor drain for preventing radon gas and odor, comprising a floor drain body, a drain pipe, a floating bell and a one-way valve, wherein the one-way valve is arranged at the inlet end of the drain pipe, the drain pipe is arranged through the lower end of the floor drain body, and its inlet end is connected to the interior of the floor drain body, and the floating bell is arranged on the inlet end of the drain pipe.

[0007] According to a preferred embodiment, a water leakage plate is provided on the inlet side of the floor drain body, and a plurality of water inlet holes are opened on the water leakage plate.

[0008] According to a preferred embodiment, the one-way valve is composed of a base and a baffle, the baffle includes a support frame, a spring and a fixed plate, the base is sleeved on the inlet end of the drain pipe, the first end of the support frame is connected to the first side of the inner wall of the base, the second end of the support frame is connected to the first end of the spring through a torsion spring, and the first end of the fixed plate is connected to the second side of the inner wall of the base opposite to the first side.

[0009] According to a preferred embodiment, a mounting position is provided on the third side of the inner wall of the inlet end of the drain pipe and on the fourth side opposite to the third side, the side opposite to the mounting position is a parallel surface, the baffle is arranged between the parallel surfaces, and the side edges of the baffle are in parallel contact with the parallel surfaces.

[0010] According to a preferred embodiment, the inner wall of the inlet end of the drain pipe is provided with an internal thread, the outer wall of the base is provided with an external thread, and the base is threadedly connected to the inlet end of the drain pipe.

[0011] According to a preferred embodiment, a sealing member is provided at the second end of the elastic piece and / or the second end of the fixing plate.

[0012] According to a preferred embodiment, a sealing rubber ring is provided at the connection gap between the base and the inlet end of the drain pipe.

[0013] The technical solution of a bell-shaped water-sealed floor drain for preventing radon and odor provided by an embodiment of the present invention has at least the following advantages and beneficial effects: the present invention realizes one-way conduction of the drain pipe by adding a one-way valve at the inlet end of the drain pipe, so that the accumulated water on the ground can be discharged to the drain pipe through the one-way valve. Under the dual action of the water seal of the floor drain body and the one-way valve, the radon and odor in the drain pipe will not be able to escape back to the ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic longitudinal section of a bell-shaped water-sealed floor drain for preventing radon and odor provided in Example 1 of the present invention;

[0015] Icon: 1-drain pipe, 101-internal thread, 2-check valve, 201-spring, 202-fixing plate, 203-torsion spring, 204-base, 205-sealing rubber ring, 206-seal, 3-floor drain body, 4-leakage plate, 5-floating bell cover. DETAILED DESCRIPTION

[0016] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0017] Example 1

[0018] Figure 1 This is a longitudinal cross-sectional view of the first preferred embodiment of a bell-shaped water-sealed floor drain for preventing radon and odor according to the present invention. Figure 1 As shown, the bell-shaped water-sealed floor drain includes a floor drain body 3, a drain pipe 1, a floating bell 5 and a one-way valve 2.

[0019] Specifically, the one-way valve 2 is arranged at the inlet end of the drain pipe 1, which is used to realize one-way conduction at the inlet end of the drain pipe 1; the drain pipe 1 is arranged through the lower end of the floor drain body 3 and extends to the interior of the floor drain body 3, and the inlet end of the drain pipe 1 is connected with the interior of the floor drain body 3. The floating bell cover 5 is arranged on the inlet end of the drain pipe 1, and a water leakage plate 4 is provided on the inlet side of the floor drain body 3, and a number of water inlet holes are opened on the water leakage plate 4.

[0020] When there is water inside the floor drain body 3 and the water level reaches a set depth, the floating bell jar 5 floats up and contacts the water leakage plate 4 at its upper end, thereby the inlet end of the drain pipe 1 and the internal seal of the floating bell jar 5 form a water seal and a one-way channel through which only ground water can enter; when there is no water inside the floor drain body 3 or the water level is lower than the set depth, the opening side of the floating bell jar 5 contacts the interior of the floor drain body 3, thereby the inlet end of the drain pipe 1 and the internal seal of the floating bell jar 5 form a closed space; at the same time, the drain pipe 1 is blocked from escaping gas under the action of the one-way valve 2, thereby effectively avoiding the problem of radon and odor escaping to the ground due to untimely water replenishment of the floor drain water seal.

[0021] Example 2

[0022] This embodiment is based on the technical solution provided in Example 1, and further describes the structure of the one-way valve 2:

[0023] The one-way valve 2 is composed of a base 204 and a baffle, and the baffle includes a support frame, a spring 201 and a fixed plate 202. The base 204 is mounted on the inlet end of the drain pipe 1, and the first end of the support frame is connected to the first side of the inner wall of the base 204. The second end of the support frame is connected to the first end of the spring 201 through a torsion spring 203, and the first end of the fixed plate 202 is connected to the second side of the inner wall of the base 204 opposite to the first side.

[0024] In a possible line of sight of this embodiment, a mounting position is provided on the third side of the inner wall of the inlet end of the drain pipe 1 and on the fourth side opposite to the third side, and the side opposite to the mounting position is a parallel surface, the baffle is arranged between the parallel surfaces, and the side edges of the baffle are in parallel contact with the parallel surfaces, so that when ground water enters the drain pipe 1, the spring piece 201 can open downward normally under the action of the gravity of the accumulated water, and when the gravity of the accumulated water is lost, the spring piece 201 is reset under the drive of the torsion spring 203, thereby preventing the gas in the drain pipe 1 from escaping in the opposite direction; in addition, a sealing member 206 is provided at the second end of the spring piece 201 and / or the second end of the fixed plate 202 to improve the sealing effect when the spring piece 201 and the fixed plate 202 are closed.

[0025] Furthermore, an internal thread 101 is provided on the inner wall of the inlet end of the drain pipe 1, and an external thread is provided on the outer wall of the base 204, and the base 204 is threadedly connected to the inlet end of the drain pipe 1; to further improve the sealing effect, a sealing rubber ring 205 is provided in the connection gap between the base 204 and the inlet end of the drain pipe 1.

[0026] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A bell-shaped water-sealed floor drain for preventing radon gas and odor, characterized in that: The invention comprises a floor drain body (3), a drainage pipe (1), a floating bell (5) and a one-way valve (2); the one-way valve (2) is arranged at the inlet end of the drainage pipe (1); the drainage pipe (1) is arranged to pass through the lower end of the floor drain body (3), and its inlet end is connected to the interior of the floor drain body (3); the floating bell (5) is arranged on the inlet end of the drainage pipe (1).

2. The bell-shaped water-sealed floor drain for preventing radon and odor according to claim 1, wherein: A water leakage plate (4) is provided on the inlet side of the floor drain body (3), and a plurality of water inlet holes are provided on the water leakage plate (4).

3. The bell-shaped water-sealed floor drain for preventing radon and odor according to any one of claims 1 to 2, characterized in that: The one-way valve (2) is composed of a base (204) and a baffle, wherein the baffle comprises a support frame, a spring (201) and a fixed plate (202), wherein the base (204) is sleeved on the inlet end of the drain pipe (1), wherein the first end of the support frame is connected to the first side of the inner wall of the base (204), the second end of the support frame is connected to the first end of the spring (201) via a torsion spring (203), and the first end of the fixed plate (202) is connected to the second side of the inner wall of the base (204) opposite to the first side.

4. The bell-shaped water-sealed floor drain for preventing radon and odor according to claim 3, wherein: The third side of the inner wall of the inlet end of the drain pipe (1) and the fourth side opposite to the third side are provided with mounting positions, the side opposite to the mounting position is a parallel surface, the baffle is arranged between the parallel surfaces, and the side of the baffle is in parallel contact with the parallel surface.

5. The bell-shaped water-sealed floor drain for preventing radon and odor according to claim 3, wherein: The inner wall of the inlet end of the drain pipe (1) is provided with an internal thread (101), the outer wall of the base (204) is provided with an external thread, and the base (204) is threadedly connected to the inlet end of the drain pipe (1).

6. The bell-shaped water-sealed floor drain for preventing radon and odor according to claim 3, characterized in that: The second end of the elastic sheet (201) and / or the second end of the fixing plate (202) is provided with a sealing member (206).

7. The bell-shaped water-sealed floor drain for preventing radon and odor according to claim 5, characterized in that: A sealing rubber ring (205) is provided at the connection gap between the base (204) and the inlet end of the drain pipe (1).

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